CN202560632U - Double-driven parallelly-connected sequential supercharging compressor - Google Patents
Double-driven parallelly-connected sequential supercharging compressor Download PDFInfo
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- CN202560632U CN202560632U CN2012201990486U CN201220199048U CN202560632U CN 202560632 U CN202560632 U CN 202560632U CN 2012201990486 U CN2012201990486 U CN 2012201990486U CN 201220199048 U CN201220199048 U CN 201220199048U CN 202560632 U CN202560632 U CN 202560632U
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Abstract
The utility model discloses a double-driven parallelly-connected sequential supercharging compressor. The compressor comprises a compressor casing, a compressor impeller and a compressor flow path are installed in the compressor casing, and a compressor air inlet and a compressor air outlet are arranged on the compressor casing respectively; and an impeller intake flow path communicated with the compressor air inlet and the compressor flow path respectively is arranged on the compressor impeller. According to the compressor, surge of the compressor under a low-speed working condition of an engine can be effectively improved, intake flow of the engine under a high-speed working condition can be effectively widened, and engine performances are improved. The structural succession of the compressor casing and the compressor impeller is good, and engineering can be achieved easily and quickly.
Description
Technical field
The utility model relates to a kind of pressure-charge compressor, specifically relates to the two of a kind of Twin channel compressor casing, single compressor impeller and drives the shunt sequence pressure-charge compressor, belongs to the supercharging of internal combustion engine field.
Background technique
Turbosupercharger is that the exhaust energy that utilizes motor to discharge drives turbine rotation, thereby drive the compressor impeller high speed rotating coaxial with turbine, and the air that gas compressor will compress pushes cylinder; Increased the air quantity of motor; Under the promotion of pressure and flow velocity, make burning more abundant, thereby improved motor power, reduced fuel consume; Also reduce the discharging of harmful substance simultaneously, reduced noise.
In recent years; Along with the significantly lifting of HP, hp/litre, the supercharging technology index also needs constantly to promote, and this just needs the higher turbosupercharger of matching performance; Thus; Exploitation has high pressure ratio, high efficiency, high reliability, has the turbosupercharger of wideer utilizable flow scope simultaneously, is to improve engine power and the essential condition of improving present engine power performance.But traditional turbosupercharger basically all adopts single impeller single channel gas compressor at present; The turbocharger surge phenomenon appears during low engine speed operating mode scope easily; When high engine speeds operating mode scope, occur pressurized machine flow choking phenomenon easily, and can not effectively satisfy required more high pressure ratio, range of flow and the level of efficiency that reaches of turbosupercharger.Therefore, the compelled two turbocharging systems that adopts in many engine application field is from usability; Two turbocharging systems has lot of advantages; But compare with the single impeller turbosupercharger of conventional use, bulky, the complicated layout of two turbocharging systems, and also design production technology difficulty is big, manufacture cost is higher; This two turbocharging systems is only applicable to high-end motor, and it is bigger to promote difficulty.
Therefore; Hope a kind of two shunt sequence pressure-charge compressors that drive that adopt single compressor impeller, dual-air compressor flow passage structure of design; This gas compressor can effectively reduce the surge loss of turbosupercharger small flow scope and the occlusive effects of big range of flow, and can effectively widen the range of flow of turbosupercharger.
The model utility content
The problem that the utility model will solve provides a kind of surge that improves turbosupercharger small flow scope and occlusive effects of big range of flow of being mainly used in, and effectively widens two shunt sequence pressure-charge compressors that drive of the range of flow of turbosupercharger.
In order to address the above problem, the utility model adopts following technological scheme:
A kind of pair is driven the shunt sequence pressure-charge compressor, comprises compressor casing, and compressor impeller is installed in the compressor casing, is provided with compressor passage in the compressor casing, and compressor casing is provided with compressor air inlet machine mouth and the gas compressor air outlet that is communicated with compressor passage respectively;
Said compressor impeller is provided with the impeller air inlet runner, and the impeller air inlet runner is communicated with compressor air inlet machine mouth and compressor passage respectively.
Below be the further improvement of the utility model to such scheme:
Compressor passage comprises gas compressor inner flow passage and the gas compressor outer flow passage that is arranged side by side on compressor casing; The suction port width of said gas compressor inner flow passage is 0.1～10 with the ratio of the suction port width of gas compressor outer flow passage.
Further improve: the suction port place of said gas compressor inner flow passage is provided with the gas compressor Diffuser.
Further improve: said gas compressor air outlet comprises gas compressor inner flow passage air outlet that is communicated with the gas compressor inner flow passage and the gas compressor outer flow passage air outlet that is communicated with the gas compressor outer flow passage, and the width of said gas compressor inner flow passage air outlet is 0.1～10 with the ratio of the width of gas compressor outer flow passage air outlet.
Further improve: the ratio size of the suction port width of said gas compressor inner flow passage and the suction port width of gas compressor outer flow passage is inequality with the ratio size of the width of the width of gas compressor inner flow passage air outlet and gas compressor outer flow passage air outlet.
Further improve: compressor impeller is provided with impeller suction port and impeller air outlet; Position on the compressor impeller between impeller suction port and impeller air outlet is provided with the demarcation strip of arranging in full week, and said demarcation strip is divided into impeller air inlet inner flow passage that is communicated with the gas compressor inner flow passage and the impeller air inlet outer flow passage that is communicated with the gas compressor outer flow passage with the impeller air inlet runner.
Further improve: be provided with partition wall in the air intake passage between said compressor impeller and the compressor air inlet machine mouth; Said partition wall in axial direction and be and full week arrange that said partition wall is spaced apart compressor air inlet machine mouth internal channel and compressor air inlet machine mouth external chennel with the air intake passage between compressor impeller and the compressor air inlet machine mouth.
Further improve: the week that said compressor air inlet machine mouth external chennel is positioned at compressor air inlet machine mouth internal channel laterally.
Further improve: said compressor air inlet machine mouth internal channel is corresponding with impeller air inlet inner flow passage and be connected, and said compressor air inlet machine mouth external chennel is corresponding with impeller air inlet outer flow passage and be connected.
Further improve: said partition wall is 60～100mm near an end and the distance between the impeller suction port of compressor air inlet machine mouth, and said partition wall is 5～20mm near the other end and the distance between the compressor air inlet machine mouth of compressor air inlet machine mouth.
Further improve: several fixed guide vanes that in compressor air inlet machine mouth external chennel, are provided with even layout.
Further improve: said compressor air inlet machine mouth external chennel, impeller air inlet outer flow passage, gas compressor outer flow passage are often to open runner.
Further improve: be provided with the fly valve that matches with compressor air inlet machine mouth internal channel near compressor air inlet machine mouth place in the said compressor air inlet machine mouth internal channel; Said fly valve is provided with the valve shaft of one connection with it; Said valve shaft is connected with control mechanism; Said fly valve rotates around valve shaft under the drive of control mechanism, thereby compressor air inlet machine mouth internal channel is opened or closed.
The another kind of improvement:
Said gas compressor inner flow passage is provided with adjustable valve near the position at place, gas compressor inner flow passage air outlet; One end of said adjustable valve is connected with valve shaft; Valve shaft is connected with control mechanism; Adjustable valve rotates around valve shaft under the drive of control mechanism, thereby realizes opening or closing of gas compressor inner flow passage.
The another kind of improvement:
Evenly be provided with several adjustable guide vanes ringwise near place, impeller air outlet in the said gas compressor Diffuser, the quantity of said fixed guide vane is 0.2～6 with the ratio of the quantity of said adjustable guide vane.
Further improve: said each adjustable guide vane shift fork that is rotationally connected; The said shift fork shift fork dish that is rotationally connected; Said shift fork dish rotates the rotation that realizes adjustable guide vane under the drive of control mechanism, thereby realizes opening or closing of gas compressor inner flow passage.
The another kind of improvement:
Said compressor air inlet machine mouth internal channel, impeller air inlet inner flow passage, gas compressor inner flow passage are for often opening runner.
Further improve:
In compressor air inlet machine mouth external chennel, be provided with the adjustable guide vane of some even layouts near impeller suction port place; The corresponding respectively gear that cooperates with it of said each adjustable guide vane; Said gear mesh should be provided with a gear disk; Said gear disk can rotate the rotation with the realization adjustable guide vane under the drive of control mechanism, thereby realizes opening or closing of compressor air inlet machine mouth external chennel.
The another kind of improvement:
In said gas compressor outer flow passage, be provided with adjustable valve near place, gas compressor outer flow passage air outlet; One end of said adjustable valve is connected with valve shaft; Valve shaft is connected with control mechanism; Adjustable valve rotates around valve shaft under the drive of control mechanism, thereby realizes opening or closing of gas compressor outer flow passage.
The utility model adopts technique scheme; When compressor air inlet machine mouth external chennel, impeller air inlet outer flow passage, gas compressor outer flow passage are when often opening runner, be arranged in working procedure, be arranged in the adjustable valve scheme at place, gas compressor inner flow passage air outlet and the working procedure of adjustable guide vane be set on Diffuser identical near the fly valve scheme at compressor air inlet machine mouth place.
When motor is in low speed operating mode scope; The adjustable guide vane that is provided with on fly valve or adjustable valve or the gas compressor Diffuser rotates under the drive of control mechanism; Close with compressor air inlet machine mouth internal channel or with gas compressor inner flow passage air outlet; Because impeller air inlet inner flow passage, gas compressor inner flow passage are connected with compressor air inlet machine mouth internal channel; Therefore impeller air inlet inner flow passage, gas compressor inner flow passage also are in closed condition simultaneously; This moment, fresh air only was inhaled into compressor air inlet machine mouth external chennel under the drive of the centrifugal force that the compressor impeller rotation is produced, and after impeller air inlet outer flow passage, the compression of gas compressor outer flow passage are quickened, got into motor then and participated in burning.Because compressor casing gas-entered passageway sectional area diminishes, and can effectively improve the compressor surge under the low engine speed operating mode.
When motor is in middle and high fast operating mode scope; The adjustable guide vane that is provided with on fly valve or adjustable valve or the gas compressor Diffuser rotates around valve shaft under the drive of control mechanism; Open with compressor air inlet machine mouth internal channel or with gas compressor inner flow passage air outlet; Thereby impeller air inlet inner flow passage, gas compressor inner flow passage are opened simultaneously, and this moment, fresh air was inhaled into compressor air inlet machine mouth internal channel and compressor air inlet machine mouth external chennel under the drive of the centrifugal force that compressor impeller produced.The fresh air that gets into compressor air inlet machine mouth internal channel gets into motor and participates in burning after impeller air inlet inner flow passage, the compression of gas compressor inner flow passage are quickened under action of centrifugal force.The fresh air that gets into compressor air inlet machine mouth external chennel gets into motor and participates in burning after acting is quickened in impeller air inlet outer flow passage, the compression of gas compressor outer flow passage under action of centrifugal force.Because it is big that compressor casing gas-entered passageway sectional area becomes, thereby effectively widened the charge flow rate under the high operating mode in the motor, improved engine performance.
When compressor air inlet machine mouth internal channel, impeller air inlet inner flow passage, gas compressor inner flow passage are when often opening runner, be arranged near the working procedure of the adjustable guide vane scheme at impeller suction port place identical with the working procedure that is arranged near the adjustable valve scheme at place, gas compressor inner flow passage air outlet.
When motor is in low speed operating mode scope; Adjustable guide vane and adjustable valve rotate under the drive of control mechanism; Close with compressor air inlet machine mouth external chennel or with gas compressor outer flow passage air outlet; Because impeller air inlet outer flow passage, gas compressor outer flow passage are connected with compressor air inlet machine mouth external chennel; Therefore impeller air inlet outer flow passage, gas compressor outer flow passage also are in closed condition simultaneously, and this moment, fresh air only was inhaled into compressor air inlet machine mouth internal channel under the drive of the centrifugal force that the compressor impeller rotation is produced, and after impeller air inlet inner flow passage, the compression of gas compressor inner flow passage are quickened, get into motor then and participate in burning.Because compressor casing gas-entered passageway sectional area diminishes, and can effectively improve the compressor surge under the low engine speed operating mode.
When motor is in middle and high fast operating mode scope; Adjustable guide vane and adjustable valve rotate under the drive of control mechanism; Open with compressor air inlet machine mouth external chennel or with gas compressor outer flow passage air outlet; Thereby impeller air inlet outer flow passage, gas compressor outer flow passage are opened simultaneously, and this moment, fresh air was inhaled into compressor air inlet machine mouth internal channel and compressor air inlet machine mouth external chennel under the drive of the centrifugal force that compressor impeller produced.The fresh air that gets into compressor air inlet machine mouth internal channel gets into motor and participates in burning after impeller air inlet inner flow passage, the compression of gas compressor inner flow passage are quickened under action of centrifugal force.The fresh air that gets into compressor air inlet machine mouth external chennel gets into motor and participates in burning after acting is quickened in impeller air inlet outer flow passage, the compression of gas compressor outer flow passage under action of centrifugal force.Because it is big that compressor casing gas-entered passageway sectional area becomes, thereby effectively widened the charge flow rate under the high operating mode in the motor, improved engine performance.
In sum, the utility model adopts such scheme, can effectively improve the compressor surge under the low engine speed operating mode, and can effectively widen the charge flow rate under the high operating mode in the motor, improves engine performance.Compressor casing in the utility model and gas compressor blade wheel construction inheritance are good, easily the Rapid Realization through engineering approaches.
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Description of drawings
Accompanying drawing 1 is the two structural representations of shunt sequence pressure-charge compressor when the middle and high fast operating mode scope of motor that drive among the utility model embodiment 1;
Accompanying drawing 2 is two shunt sequence pressure-charge compressor air outlet structural representations that drive among the utility model embodiment 1;
Accompanying drawing 3 is two schematic cross-sections that drive the compressor impeller of shunt sequence pressure-charge compressor among the utility model embodiment 1;
Accompanying drawing 4 is two shunt sequence pressure-charge compressor structural representations at compressor impeller that drive among the utility model embodiment 1;
Accompanying drawing 5 is two shunt sequence pressure-charge compressor structural representations when low engine speed operating mode scope that drive among the utility model embodiment 1;
Accompanying drawing 6 is two structural representations that drive the shunt sequence pressure-charge compressor among the utility model embodiment 2;
Accompanying drawing 7 is two structural representations that drive the compressor casing of shunt sequence pressure-charge compressor among the utility model embodiment 2;
Accompanying drawing 8 is two structural representations that drive the shunt sequence pressure-charge compressor among the utility model embodiment 3;
Accompanying drawing 9 is two shunt sequence pressure-charge compressor structural representations when the middle and high fast operating mode scope of motor that drive among the utility model embodiment 3;
Accompanying drawing 10 is the two compressor casing of shunt sequence pressure-charge compressor and structural representations of control mechanism of driving among the utility model embodiment 3;
Accompanying drawing 11 is two shunt sequence pressure-charge compressor structural representations when low engine speed operating mode scope that drive among the utility model embodiment 3;
Accompanying drawing 12 is two structural representations when low engine speed operating mode scope that drive the shunt sequence pressure-charge compressor among the utility model embodiment 4.
Accompanying drawing 13 is two structural representations when the middle and high operating mode scope of motor that drive the shunt sequence pressure-charge compressor among the utility model embodiment 4.
Accompanying drawing 14 is the two compressor casing of shunt sequence pressure-charge compressor and structural representations of control mechanism of driving among the utility model embodiment 5;
Accompanying drawing 15 is compressor performance characteristic diagrams among the utility model embodiment 1-5.
Among the figure: the 1-compressor casing; The 2-compressor impeller; 3-compressor air inlet machine mouth; 4-gas compressor Diffuser; 5-impeller suction port; 6-impeller air outlet; 7-gas compressor inner flow passage; 8-gas compressor outer flow passage; 9-gas compressor inner flow passage air outlet; 10-gas compressor outer flow passage air outlet; The 11-demarcation strip; 12-impeller air inlet inner flow passage; 13-impeller air inlet outer flow passage; The 14-partition wall; 15-compressor air inlet machine mouth internal channel; 16-compressor air inlet machine mouth external chennel; The 17-fixed guide vane; The 18-fly valve; The 19-valve shaft; The 20-adjustable valve; The 21-adjustable guide vane; The 22-shift fork; 23-shift fork dish; The 24-gear; The 25-gear disk.
Embodiment
Compressor passage comprises the gas compressor inner flow passage 7 and gas compressor outer flow passage 8 that is arranged side by side on compressor casing 1; The suction port width W 1 of said gas compressor inner flow passage 7 is 0.1～10 with the ratio of the suction port width W 2 of gas compressor outer flow passage 8.
The suction port place of said gas compressor inner flow passage 7 is provided with gas compressor Diffuser 4.
Said gas compressor air outlet comprises gas compressor inner flow passage air outlet 9 that is communicated with gas compressor inner flow passage 7 and the gas compressor outer flow passage air outlet 10 that is communicated with gas compressor outer flow passage 8, and the width W 3 of said gas compressor inner flow passage air outlet 9 is 0.1～10 with the ratio of the width W 4 of gas compressor outer flow passage air outlet 10.
The suction port width W 1 of said gas compressor inner flow passage 7 is inequality with the ratio size of the width W 4 of gas compressor outer flow passage air outlet 10 with the width W 3 of gas compressor inner flow passage air outlet 9 with the ratio size of the suction port width W 2 of gas compressor outer flow passage 8.
As 3, shown in Figure 4; Compressor impeller 2 is provided with impeller suction port 5 and impeller air outlet 6; Position on the compressor impeller 2 between impeller suction port 5 and impeller air outlet 6 is provided with the demarcation strip of arranging in full week 11, and said demarcation strip 11 is divided into impeller air inlet inner flow passage 12 that is communicated with gas compressor inner flow passage 7 and the impeller air inlet outer flow passage 13 that is communicated with gas compressor outer flow passage 8 with the impeller air inlet runner.
As shown in Figure 1, be provided with partition wall 14 in the air intake passage between said compressor impeller 2 and the compressor air inlet machine mouth 3, said partition wall 14 is in axial direction and be and arrange in full week.
Said partition wall 14 is spaced apart compressor air inlet machine mouth internal channel 15 and compressor air inlet machine mouth external chennel 16 with the air intake passage between compressor impeller 2 and the compressor air inlet machine mouth 3.
The week that said compressor air inlet machine mouth external chennel 16 is positioned at compressor air inlet machine mouth internal channel 15 laterally.
Said compressor air inlet machine mouth internal channel 15 and impeller air inlet inner flow passage 12 are corresponding and be connected, and said compressor air inlet machine mouth external chennel 16 and impeller air inlet outer flow passage 13 are corresponding and be connected.
Said compressor air inlet machine mouth external chennel 16, impeller air inlet outer flow passage 13, gas compressor outer flow passage 8 are often to open runner.
Said partition wall 14 is 60～100mm near an end and the distance H between the impeller suction port 5 of compressor air inlet machine mouth 3, and said partition wall 14 is 5～20mm near the other end and the distance h between the compressor air inlet machine mouth 3 of compressor air inlet machine mouth 3.
In compressor air inlet machine mouth external chennel 16, be provided with several fixed guide vanes 17 of even layout; This structural design is mainly used on the one hand and is fixedly connected partition wall 14 and compressor casing 1, can effectively guide the exhaust flow that gets into compressor air inlet machine mouth external chennel 16 to get into impeller air inlet outer flow passage 13 smoothly on the other hand.
In said compressor air inlet machine mouth internal channel 15, be provided with the fly valve 18 that matches with compressor air inlet machine mouth internal channel 15 near compressor air inlet machine mouth 3 places.
Said fly valve 18 is provided with the valve shaft 19 of one connection with it, and said valve shaft 19 is connected with control mechanism, and said fly valve 18 rotates around valve shaft 19 under the drive of control mechanism, thereby compressor air inlet machine mouth internal channel 15 is opened or closed.
As shown in Figure 5; When motor is in low speed operating mode scope; Fly valve 18 rotates around valve shaft 19 under the drive of control mechanism; Compressor air inlet machine mouth internal channel 15 is closed, because impeller air inlet inner flow passage 12, gas compressor inner flow passage 7 be connected with compressor air inlet machine mouth internal channel 15, so impeller air inlet inner flow passage 12,7 whiles of gas compressor inner flow passage also are in closed condition; This moment, fresh air only was inhaled into compressor air inlet machine mouth external chennel 16 under the drive of the centrifugal force that compressor impeller 2 rotations are produced, and after impeller air inlet outer flow passage 13,8 compressions of gas compressor outer flow passage are quickened, got into motor then and participated in burning.Because compressor casing 1 gas-entered passageway sectional area diminishes, and can effectively improve the compressor surge under the low engine speed operating mode.
As shown in Figure 1; When motor is in middle and high fast operating mode scope; Fly valve 18 rotates around valve shaft 19 under the drive of control mechanism; Compressor air inlet machine mouth internal channel 15 is opened, thereby impeller air inlet inner flow passage 12, gas compressor inner flow passage 7 are opened simultaneously, this moment, fresh air was inhaled into compressor air inlet machine mouth internal channel 15 and compressor air inlet machine mouth external chennel 16 under the drive of the centrifugal force that compressor impeller 2 is produced.The fresh air that gets into compressor air inlet machine mouth internal channel 15 gets into motor and participates in burning after impeller air inlet inner flow passage 12,7 compressions of gas compressor inner flow passage are quickened under action of centrifugal force.The fresh air that gets into compressor air inlet machine mouth external chennel 16 gets into motor and participates in burning after acting is quickened in impeller air inlet outer flow passage 13,8 compressions of gas compressor outer flow passage under action of centrifugal force.Because it is big that compressor casing 1 gas-entered passageway sectional area becomes, thereby effectively widened the air inflow under the high operating mode in the motor, improved engine performance.
This embodiment's working procedure: as shown in Figure 7; During low engine speed operating mode scope; Adjustable valve 20 is being in closed condition (in figure shown in the adjustable valve solid line) under the drive of control mechanism, fresh air rotated at compressor impeller 2 and only was inhaled into compressor air inlet machine mouth external chennel 16 under the drive of the centrifugal force that is produced and quickens the back through impeller air inlet outer flow passage 13,8 compressions of gas compressor outer flow passage then and get into motor and participate in burning this moment.Because compressor casing gas-entered passageway sectional area diminishes, and can effectively improve the compressor surge under the low engine speed operating mode.Thereby and, adjustable valve 20 stopped the fresh air that gets into engine air inlet tube through compressor air inlet machine mouth internal channel 15, impeller air inlet inner flow passage 12 and gas compressor inner flow passage 7 because closing.During the middle and high fast operating mode scope of motor, adjustable valve 20 is being in open mode (shown in adjustable valve dotted line among the figure) under the drive of control mechanism, and the working procedure of this operating mode is with the working procedure under motor high speed operating mode among the embodiment 1.
Shown in figure 10; Said each adjustable guide vane 21 shift fork 22 that is rotationally connected; The said shift fork 22 shift fork dish 23 that is rotationally connected, said shift fork dish 23 rotate the rotation that realizes adjustable guide vane 21 under the drive of control mechanism, thereby realize opening or closing of gas compressor inner flow passage 7.
Control mechanism among this embodiment 3 is not limited to fork controls mechanism, can select the control mechanism of arbitrary structures.
This embodiment's working procedure: shown in figure 11; During low engine speed operating mode scope; Adjustable guide vane 21 is in closed condition under the drive of control mechanism, fresh air rotated at compressor impeller 2 and only was inhaled into compressor air inlet machine mouth internal channel 15 under the drive of the centrifugal force that is produced and quickens the back through impeller air inlet inner flow passage 12,7 compressions of gas compressor inner flow passage then and get into motor and participate in burning this moment.Because compressor casing gas-entered passageway sectional area diminishes, and can effectively improve the compressor surge under the low engine speed operating mode.Thereby and, adjustable guide vane 21 stopped the fresh air that gets into engine air inlet tube through compressor air inlet machine mouth external chennel 16, impeller air inlet outer flow passage 13 and gas compressor outer flow passage 8 because closing.As shown in Figure 9, during the middle and high fast operating mode scope of motor, adjustable guide vane 21 is in open mode under the drive of control mechanism, and the working procedure of this operating mode is with the working procedure under motor high speed operating mode among the embodiment 1.
Control mechanism among this embodiment 4 is not limited to the gear control mechanism, can select the control mechanism of arbitrary structures.
This embodiment's working procedure: shown in figure 12; When motor is in low speed operating mode scope; Adjustable guide vane 21 rotates under the drive of control mechanism; Compressor air inlet machine mouth external chennel 16 is closed, because impeller air inlet outer flow passage 13, gas compressor outer flow passage 8 be connected with compressor air inlet machine mouth external chennel 16, so impeller air inlet outer flow passage 13,8 whiles of gas compressor outer flow passage also are in closed condition; This moment, fresh air only was inhaled into compressor air inlet machine mouth internal channel 15 under the drive of the centrifugal force that compressor impeller 2 rotations are produced, and after impeller air inlet inner flow passage 12,7 compressions of gas compressor inner flow passage are quickened, got into motor then and participated in burning.Because compressor casing gas-entered passageway sectional area diminishes, and can effectively improve the compressor surge under the low engine speed operating mode.
Shown in figure 13; When motor is in middle and high fast operating mode scope; Adjustable guide vane 21 rotates under the drive of control mechanism; Compressor air inlet machine mouth external chennel 16 is opened, thereby impeller air inlet outer flow passage 13, gas compressor outer flow passage 8 are opened simultaneously, this moment, fresh air was inhaled into compressor air inlet machine mouth internal channel 15 and compressor air inlet machine mouth external chennel 16 under the drive of the centrifugal force that compressor impeller 2 is produced.The fresh air that gets into compressor air inlet machine mouth internal channel 15 gets into motor and participates in burning after impeller air inlet inner flow passage 12,7 compressions of gas compressor inner flow passage are quickened under action of centrifugal force.The fresh air that gets into compressor air inlet machine mouth external chennel 16 gets into motor and participates in burning after acting is quickened in impeller air inlet outer flow passage 13,8 compressions of gas compressor outer flow passage under action of centrifugal force.Because it is big that compressor casing gas-entered passageway sectional area becomes, thereby effectively widened the charge flow rate under the high operating mode in the motor, improved engine performance.
This embodiment's working procedure; During low engine speed operating mode scope; Adjustable valve 20 is in closed condition (shown in figure adjustable valve solid line) under the drive of control mechanism, fresh air rotated at compressor impeller 2 and only was inhaled into compressor air inlet machine mouth internal channel 15 under the drive of the centrifugal force that is produced and quickens the back through impeller air inlet inner flow passage 12,7 compressions of gas compressor inner flow passage then and get into motor and participate in burning this moment.Because compressor casing gas-entered passageway sectional area diminishes, and can effectively improve the compressor surge under the low engine speed operating mode.Thereby and, adjustable valve 20 stopped the fresh air that gets into engine air inlet tube successively through compressor air inlet machine mouth external chennel 16, impeller air inlet outer flow passage 13 and gas compressor outer flow passage 8 because closing.During the middle and high fast operating mode scope of motor, adjustable valve 20 is in open mode (shown in figure adjustable valve dotted line) under the drive of control mechanism, and the working procedure of this operating mode is with the working procedure under the middle and high fast operating mode of motor among the embodiment 4.
Among the foregoing description 1-5, shown in figure 15, when having only a little compressor passage to work; It is the performance plot (shown in the figure dotted line) of a little gas compressor; When it has a big compressor passage to work, be the performance plot (shown in the figure solid line) of a big gas compressor, when two compressor passage co-operation of design; The performance diagram of this gas compressor can be contained the performance plot of the gas compressor of big or small runner; From this diagram can obviously find out adopt this kind technological scheme after the compressor air inlet machine range of flow obtain expanding, two independent efficient circles appear simultaneously, improved the gas compressor performance.
Claims (19)
1. one kind pair is driven the shunt sequence pressure-charge compressor; Comprise compressor casing (1); Compressor impeller (2) is installed in the compressor casing (1); Compressor casing is provided with compressor passage in (1), and compressor casing (1) is provided with compressor air inlet machine mouth (3) and the gas compressor air outlet that is communicated with compressor passage respectively;
It is characterized in that:
Said compressor impeller (2) is provided with the impeller air inlet runner, and the impeller air inlet runner is communicated with compressor air inlet machine mouth (3) and compressor passage respectively.
2. a kind of pair according to claim 1 is driven the shunt sequence pressure-charge compressor, it is characterized in that:
Compressor passage comprises gas compressor inner flow passage (7) and the gas compressor outer flow passage (8) that is arranged side by side on compressor casing (1); The suction port width (W1) of said gas compressor inner flow passage (7) is 0.1～10 with the ratio of the suction port width (W2) of gas compressor outer flow passage (8).
3. a kind of pair according to claim 2 is driven the shunt sequence pressure-charge compressor, it is characterized in that:
The suction port place of said gas compressor inner flow passage (7) is provided with gas compressor Diffuser (4).
4. according to claim 2 or 3 described a kind of two shunt sequence pressure-charge compressors that drive; It is characterized in that: said gas compressor air outlet comprises gas compressor inner flow passage air outlet (9) that is communicated with gas compressor inner flow passage (7) and the gas compressor outer flow passage air outlet (10) that is communicated with gas compressor outer flow passage (8), and the width (W3) of said gas compressor inner flow passage air outlet (9) is 0.1～10 with the ratio of the width (W4) of gas compressor outer flow passage air outlet (10).
5. a kind of pair according to claim 4 is driven the shunt sequence pressure-charge compressor, it is characterized in that:
The suction port width (W1) of said gas compressor inner flow passage (7) is inequality with the ratio size of the width (W4) of gas compressor outer flow passage air outlet (8) with the width (W3) of gas compressor inner flow passage air outlet (7) with the ratio size of the suction port width (W2) of gas compressor outer flow passage (8).
6. a kind of two shunt sequence pressure-charge compressors that drive according to claim 4; It is characterized in that: compressor impeller (2) is provided with impeller suction port (5) and impeller air outlet (6); The position that is positioned on the compressor impeller (2) between impeller suction port (5) and impeller air outlet (6) is provided with the demarcation strip of arranging in full week (11), and said demarcation strip (11) is divided into impeller air inlet inner flow passage (12) that is communicated with gas compressor inner flow passage (7) and the impeller air inlet outer flow passage (13) that is communicated with gas compressor outer flow passage (8) with the impeller air inlet runner.
7. a kind of two shunt sequence pressure-charge compressors that drive according to claim 6; It is characterized in that: be provided with partition wall (14) in the air intake passage between said compressor impeller (2) and the compressor air inlet machine mouth (3); Said partition wall (14) in axial direction and be and full week arrange that said partition wall (14) is spaced apart compressor air inlet machine mouth internal channel (15) and compressor air inlet machine mouth external chennel (16) with the air intake passage between compressor impeller (2) and the compressor air inlet machine mouth (3).
8. according to claim 7ly a kind ofly two drive the shunt sequence pressure-charge compressor, it is characterized in that: the week that said compressor air inlet machine mouth external chennel (16) is positioned at compressor air inlet machine mouth internal channel (15) laterally.
9. a kind of two shunt sequence pressure-charge compressors that drive according to claim 8; It is characterized in that: said compressor air inlet machine mouth internal channel (15) is corresponding with impeller air inlet inner flow passage (12) and be connected, and said compressor air inlet machine mouth external chennel (16) is corresponding with impeller air inlet outer flow passage (13) and be connected.
10. a kind of two shunt sequence pressure-charge compressors that drive according to claim 9; It is characterized in that: said partition wall (14) is 60～100mm near an end of compressor air inlet machine mouth (3) and the distance (H) between the impeller suction port (5), and said partition wall (14) is 5～20mm near the other end of compressor air inlet machine mouth (3) and the distance (h) between the compressor air inlet machine mouth (3).
11. a kind of pair according to claim 10 is driven the shunt sequence pressure-charge compressor, it is characterized in that: several fixed guide vanes (17) that in compressor air inlet machine mouth external chennel (16), are provided with even layout.
12. a kind of pair according to claim 11 is driven the shunt sequence pressure-charge compressor, it is characterized in that: said compressor air inlet machine mouth external chennel (16), impeller air inlet outer flow passage (13), gas compressor outer flow passage (8) are often to open runner.
13. a kind of two shunt sequence pressure-charge compressors that drive according to claim 12; It is characterized in that: locate to be provided with the fly valve (18) that matches with compressor air inlet machine mouth internal channel (15) near compressor air inlet machine mouth (3) in the said compressor air inlet machine mouth internal channel (15); Said fly valve (18) is provided with the valve shaft (19) of one connection with it; Said valve shaft (19) is connected with control mechanism; Said fly valve (18) rotates around valve shaft (19) under the drive of control mechanism, thereby compressor air inlet machine mouth internal channel (15) is opened or closed.
14. a kind of two shunt sequence pressure-charge compressors that drive according to claim 12; It is characterized in that: the position that said gas compressor inner flow passage (7) is located near gas compressor inner flow passage air outlet (9) is provided with adjustable valve (20); One end of said adjustable valve (20) is connected with valve shaft (19); Valve shaft (19) is connected with control mechanism; Adjustable valve (20) rotates around valve shaft (19) under the drive of control mechanism, thereby realizes opening or closing of gas compressor inner flow passage (7).
15. a kind of two shunt sequence pressure-charge compressors that drive according to claim 12; It is characterized in that: locate evenly to be provided with ringwise several adjustable guide vanes (21) near impeller air outlet (6) in the said gas compressor Diffuser (4), the ratio of the quantity of the quantity of said fixed guide vane (17) and said adjustable guide vane (21) is 0.2～6.
16. a kind of two shunt sequence pressure-charge compressors that drive according to claim 15; It is characterized in that: said each adjustable guide vane (21) shift fork (22) that is rotationally connected; Said shift fork (22) the shift fork dish (23) that is rotationally connected; Said shift fork dish (23) rotates the rotation that realizes adjustable guide vane (21) under the drive of control mechanism, thereby realizes opening or closing of gas compressor inner flow passage (7).
17. a kind of pair according to claim 10 is driven the shunt sequence pressure-charge compressor, it is characterized in that: said compressor air inlet machine mouth internal channel (15), impeller air inlet inner flow passage (12), gas compressor inner flow passage (7) are for often opening runner.
18. a kind of two shunt sequence pressure-charge compressors that drive according to claim 17; It is characterized in that: the adjustable guide vane (21) of in compressor air inlet machine mouth external chennel (16), locating to be provided with some even layouts near impeller suction port (5); The corresponding respectively gear (24) that cooperates with it of said each adjustable guide vane (21); Said gear (24) correspondence is provided with a gear disk (25); Said gear disk (25) can rotate the rotation with realization adjustable guide vane (21) under the drive of control mechanism, thereby realizes opening or closing of compressor air inlet machine mouth external chennel (16).
19. a kind of two shunt sequence pressure-charge compressors that drive according to claim 17; It is characterized in that: in said gas compressor outer flow passage (8), locate to be provided with adjustable valve (20) near gas compressor outer flow passage air outlet (10); One end of said adjustable valve (20) is connected with valve shaft (19); Valve shaft (19) is connected with control mechanism; Adjustable valve (20) rotates around valve shaft (19) under the drive of control mechanism, thereby realizes opening or closing of gas compressor outer flow passage (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201990486U CN202560632U (en) | 2012-05-07 | 2012-05-07 | Double-driven parallelly-connected sequential supercharging compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201990486U CN202560632U (en) | 2012-05-07 | 2012-05-07 | Double-driven parallelly-connected sequential supercharging compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560632U true CN202560632U (en) | 2012-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201990486U Withdrawn - After Issue CN202560632U (en) | 2012-05-07 | 2012-05-07 | Double-driven parallelly-connected sequential supercharging compressor |
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| Country | Link |
|---|---|
| CN (1) | CN202560632U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720692A (en) * | 2012-05-07 | 2012-10-10 | 康跃科技股份有限公司 | Double-driving parallel sequential supercharging compressor |
| CN103047049A (en) * | 2012-12-31 | 2013-04-17 | 王来瑞 | Turbojet engine |
| CN110173442A (en) * | 2019-04-18 | 2019-08-27 | 西安热工研究院有限公司 | The overcritical working medium closed centrifugal compressor set of the adjustable partial admission of flow and method |
-
2012
- 2012-05-07 CN CN2012201990486U patent/CN202560632U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720692A (en) * | 2012-05-07 | 2012-10-10 | 康跃科技股份有限公司 | Double-driving parallel sequential supercharging compressor |
| WO2013166626A1 (en) * | 2012-05-07 | 2013-11-14 | Wang Hang | Dual-drive parallel sequential booster compressor |
| CN103047049A (en) * | 2012-12-31 | 2013-04-17 | 王来瑞 | Turbojet engine |
| CN103047049B (en) * | 2012-12-31 | 2015-04-29 | 王来瑞 | Turbojet engine |
| CN110173442A (en) * | 2019-04-18 | 2019-08-27 | 西安热工研究院有限公司 | The overcritical working medium closed centrifugal compressor set of the adjustable partial admission of flow and method |
| CN110173442B (en) * | 2019-04-18 | 2024-05-28 | 西安热工研究院有限公司 | Flow-adjustable local air inlet supercritical working medium closed centrifugal compressor unit and method |
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